Layers in Docker

In Docker, layers are a fundamental part of the image architecture that allows Docker to be efficient, fast, and portable. A Docker image is essentially built up from a series of layers, each representing a set of differences from the previous layer.

Dockerfile and Cheatsheet

If we want to create an image from a docker file. The docker file is a text file that contains instructions for building a docker image.

Docker - Introduction and Overview

What is Docker ? Docker is an open source platform that enables you to build, deploy, run, update and manage containerized applications easily. It lets you create and manage containers which contains everything the application/sofware needs to run, such as code, libraries, runtime, file system, etc.